Sorry, Jaybo, I haven't tried the actual Patagonia boots, you've mentioned. I've always found their items priced much, much, to high in order to include about a 45% additional mark up so one can have "their name showing" on their gear.
However, I HAVE owned and HAVE worn, two, different pairs of "Aquastealth" soled wading boots. You'll notice that I use the terms "HAVE owned and HAVE worn", both past tense because after several trips with each pair of Aquastealth boots, I couldn't WAIT to get back home again and get the things on E-bay and out of my gear line up!
Maybe, others, have had good luck with this; "newest, latest, sticky rubber breakthrough", but the only "breakthrough" that I HAD was nearly to break my bones, upon falling down on large and small rocks!!
I'm being 100% honest, when I say this.................. I saw absolutely NO DIFFERENCE whatsoever, between the Aquastealth rubber soles and my every day, rubber soled, hiking boots, when it got down to traction and slipping, on wet or algae covered rocks and logs!!
As for "felts with studs, keeping the felt on longer" it's actually the opposite, of what can happen with this set up. The studs, of a stud/felt set up, doesn't in any way, connect the felts and studs together. In fact, on all the felt/stud boot I've owned or still own, every place that there's a STUD, there's LESS area of the FELT that's glued to the bed of the boot itself.
So, even though you're walking and wading, "up on the studs and not directly on the felt", the felts are STILL not anchored as well as they might have been, had there been no studs to begin with.
I used to fight this same dilemma, you're facing until I found my "Ultimate wading boot" for stocking foot, or wet wading!
"Korkers Brand" of wading boots, with the "convertible sole system"! I've worn everything over the years, from Danner's to Hodgmen, to L.L.Bean to Gary Borger's, to you name it. But, I'd never had as comfortable of a wadding boot, until I bought my pair of Korkers boots!
I won't go into an advertisment, for them, HERE except to say....... "when I hike into far away waters, for a mile or three, I'm wearing a hiking boot with a hiking boot sole. Once I arrive at my destination, I take my felts, or my felt/stud, soles, out of the rear vest pocket, switch out the two soles and I'm good to go!
On the hike, back out, I again exchange felts for rubber hiking soles and I'm off! Since there are 5 different, soles, available for these boots, they cover an and all wading scenarios one's libel to encounter!!